1290810790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{165701}}^1$

素因数の和:165768

約数の個数: 32

約数和(自身を含む): 2505414240

約数和(自身を除く): 1214603450

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 3895, 7790, 165701, 331402, 828505, 1657010, 3148319, 6296638, 6793741, 13587482, 15741595, 31483190, 33968705, 67937410, 129081079, 258162158, 645405395, 1290810790]

約数ペア:

[(1, 1290810790), (2, 645405395), (5, 258162158), (10, 129081079), (19, 67937410), (38, 33968705), (41, 31483190), (82, 15741595), (95, 13587482), (190, 6793741), (205, 6296638), (410, 3148319), (779, 1657010), (1558, 828505), (3895, 331402), (7790, 165701)]